Synchronous Motors A synchronous motor runs at only one speed because it ______ None of the listed here Has no losses Is a doubly fed machine Has a damper winding None of the listed here Has no losses Is a doubly fed machine Has a damper winding ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor is determined by its _____ None of the listed here kVA rating kVAR rating kW rating None of the listed here kVA rating kVAR rating kW rating ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If one phase of a 3 phase synchronous motor is short circuited, motor Will overheat in spots Will fail to pull into step Will not come upto speed Will refused ro start Will overheat in spots Will fail to pull into step Will not come upto speed Will refused ro start ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 0° electrical 30° electrical 45° electrical 90° electrical 0° electrical 30° electrical 45° electrical 90° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Supply phase sequence Current to field winding Polarity of rotor poles None of the listed here Supply phase sequence Current to field winding Polarity of rotor poles None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Supply voltage frequency changes Supply voltage fluctuates Excitation winding gets disconnected Load in motor varies Supply voltage frequency changes Supply voltage fluctuates Excitation winding gets disconnected Load in motor varies ANSWER DOWNLOAD EXAMIANS APP
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